Posted: Sun Apr 19, 2009 8:09 pm
Gran-does -- What ever you do with your filters make sure you get a 5x turn over with your water. Check your mfg manual and see how many gph it puts out. Be careful using gravel. Make sure that it is larger than their mouths and will be when they get larger. I use river rocks that are about an inch in diameter. The undergravel filter does not do much for the gph but will help with the bacteria. I use an undergravel (rock) filter as an intake which takes some home made plumbing to make it work. Good Luck! m.
Things come to those who wait, - Just remember, someone probably got there first!